Several weeks ago, beverage chain 'Smoothie King' released their CFs with�f(x)'s Sulli and Victoria. Recently, an additional behind-the-scenes video of the shoot was released! In the clip, Victoria and Sully show off their cute and natural charms for the camera. Victoria displays her flexibility once again while Sulli happily watches her "mother". In addition, the two throw the camera more aegyo while jumping on a trampoline. Check it out below! -- And if you haven't seen the CFs, look below! Thanks to jaybabyyyy for the tip!